Biomarkers responses of the clam Anomalocardia flexuosa in sediment toxicity bioassays using dredged materials from a semi-arid coastal system

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal do Ceará-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorMoreira, Lucas Buruaem [UNESP]-
Autor(es): dc.creatorSasaki, Silvio Tarou-
Autor(es): dc.creatorTaniguchi, Satie-
Autor(es): dc.creatorPeres, Tiago Farias-
Autor(es): dc.creatorLopes Figueira, Rubens Cesar-
Autor(es): dc.creatorBícego, Marcia Caruso-
Autor(es): dc.creatorMarins, Rozane Valente-
Autor(es): dc.creatorCosta-Lotufo, Leticia Veras-
Autor(es): dc.creatorSouza Abessa, Denis Moledo [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:25:48Z-
Data de disponibilização: dc.date.available2022-02-22T00:25:48Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.heliyon.2020.e04030-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/198883-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/198883-
Descrição: dc.descriptionFew test organisms are employed for sediment toxicity assessments in Tropical regions, including Brazil. We assessed the ability of the clam Anomalocardia flexuosa to respond to contamination in sediment bioassays using dredging materials of a semi-arid region (Ceará State, NE Brazil), with attention to sublethal responses. Sediments were collected during and after dredging (survey 1 and 2, respectively) and animals exposed in laboratory over 28 days, with responses measured at 7 days. Bioaccumulation of contaminants was determined in whole-body soft tissues as a metric of bioavailability, and biomarkers' changes were monitored in terms of enzymes of phase I and II metabolism, acetylcholinesterase (AChE), and antioxidant responses, lipid peroxidation (LPO) and DNA damage (strand breaks). Clams accumulated aliphatic (AHs) and aromatic hydrocarbons (PAHs), and linear alkylbenzenes (LABs) compared to control conditions (day 0), with increased amounts of As, Cd, Cu, and Zn observed in some samples. The enzyme glutathione S-transferase was enhanced in animals exposed to samples, indicating activation of phase II metabolism. Changes observed in glutathione peroxidase (GPx), glutathione reductase (GR), LPO and strand breaks were related to oxidative stress. AChE enzymatic activity also changed, as an indicator of neurotoxicity caused by sediment exposure. The computed integrated biomarker response index (IBR) ranked sites according to the contamination status and proximity to its sources. Correlations found for biomarkers and bioaccumulation of hydrocarbons indicated the influence of harbor activities, effluent discharges, and urban runoff on the sediment pollution of Mucuripe Bay. Data also showed that SQGs are unable to predict bioaccumulation and subchronic effects. Based on our results we consider that biomarkers responses in A. flexuosa are important endpoints to be applied in sediment toxicity bioassays in tropical regions.-
Descrição: dc.descriptionBioaccumulation; Environmental monitoring; Linear alkylbenzenes; Marine pollution; Metals; Polycyclic aromatic hydrocarbons; Sublethal effects; Tropical environments; Toxicity testing; Weight of evidence; Ecological health; Marine biology; Environmental assessment; Environmental hazard; Environmental health; Environmental impact assessment; Environmental pollution; Environmental risk assessment; Environmental toxicology; Toxicology-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia-
Descrição: dc.descriptionInstituto de Ciências do Mar Universidade Federal do Ceará-
Descrição: dc.descriptionNúcleo de Estudos em Poluição e Ecotoxicologia Aquática UNESP-
Descrição: dc.descriptionInstituto Oceanográfico Universidade de São Paulo-
Descrição: dc.descriptionNúcleo de Estudos em Poluição e Ecotoxicologia Aquática UNESP-
Descrição: dc.descriptionCNPq: 142002/2010-0-
Descrição: dc.descriptionCNPq: 311609/2014-7-
Descrição: dc.descriptionCNPq: 552299/2010-3-
Descrição: dc.descriptionCNPq: 573.601/2008-9-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: BMD-0008-00058.01.18/09-
Idioma: dc.languageen-
Relação: dc.relationHeliyon-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBioaccumulation-
Palavras-chave: dc.subjectEcological health-
Palavras-chave: dc.subjectEnvironmental assessment-
Palavras-chave: dc.subjectEnvironmental hazard-
Palavras-chave: dc.subjectEnvironmental health-
Palavras-chave: dc.subjectEnvironmental impact assessment-
Palavras-chave: dc.subjectEnvironmental monitoring-
Palavras-chave: dc.subjectEnvironmental pollution-
Palavras-chave: dc.subjectEnvironmental risk assessment-
Palavras-chave: dc.subjectEnvironmental toxicology-
Palavras-chave: dc.subjectLinear alkylbenzenes-
Palavras-chave: dc.subjectMarine biology-
Palavras-chave: dc.subjectMarine pollution-
Palavras-chave: dc.subjectMetals-
Palavras-chave: dc.subjectPolycyclic aromatic hydrocarbons-
Palavras-chave: dc.subjectSublethal effects-
Palavras-chave: dc.subjectToxicity testing-
Palavras-chave: dc.subjectToxicology-
Palavras-chave: dc.subjectTropical environments-
Palavras-chave: dc.subjectWeight of evidence-
Título: dc.titleBiomarkers responses of the clam Anomalocardia flexuosa in sediment toxicity bioassays using dredged materials from a semi-arid coastal system-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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